Power variations of a wind turbine generator connecting to power system

Wind turbine generators are driven by stochastically fluctuating wind speeds, and hence the generated power variation causes voltage and frequency changes in the case of a small power system on an isolated island. To cope with such variations, a control strategy for controlling wind turbines is required. This paper presents a new control scheme based on disturbance accommodation control. The results show that the proposed controller can drastically reduce the power variation.